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authorJohannes Thumshirn <johannes.thumshirn@wdc.com>2021-01-27 05:21:15 +0900
committerDamien Le Moal <damien.lemoal@wdc.com>2021-02-16 09:59:54 +0900
commit62ab1aadcccd037a7ced4ed99b4d46d2b4190183 (patch)
treef6423157260b368f67d29eb566263bd2f5565691 /fs/zonefs/trace.h
parent6ee1d745b7c9fd573fba142a2efdad76a9f1cb04 (diff)
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zonefs: add tracepoints for file operations
Add tracepoints for file I/O operations to aid in debugging of I/O errors with zonefs. The added tracepoints are in: - zonefs_zone_mgmt() for tracing zone management operations - zonefs_iomap_begin() for tracing regular file I/O - zonefs_file_dio_append() for tracing zone-append operations Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Diffstat (limited to 'fs/zonefs/trace.h')
-rw-r--r--fs/zonefs/trace.h104
1 files changed, 104 insertions, 0 deletions
diff --git a/fs/zonefs/trace.h b/fs/zonefs/trace.h
new file mode 100644
index 000000000000..f369d7d50303
--- /dev/null
+++ b/fs/zonefs/trace.h
@@ -0,0 +1,104 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * zonefs filesystem driver tracepoints.
+ *
+ * Copyright (C) 2021 Western Digital Corporation or its affiliates.
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM zonefs
+
+#if !defined(_TRACE_ZONEFS_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_ZONEFS_H
+
+#include <linux/tracepoint.h>
+#include <linux/trace_seq.h>
+#include <linux/blkdev.h>
+
+#include "zonefs.h"
+
+#define show_dev(dev) MAJOR(dev), MINOR(dev)
+
+TRACE_EVENT(zonefs_zone_mgmt,
+ TP_PROTO(struct inode *inode, enum req_opf op),
+ TP_ARGS(inode, op),
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(int, op)
+ __field(sector_t, sector)
+ __field(sector_t, nr_sectors)
+ ),
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->op = op;
+ __entry->sector = ZONEFS_I(inode)->i_zsector;
+ __entry->nr_sectors =
+ ZONEFS_I(inode)->i_zone_size >> SECTOR_SHIFT;
+ ),
+ TP_printk("bdev=(%d,%d), ino=%lu op=%s, sector=%llu, nr_sectors=%llu",
+ show_dev(__entry->dev), (unsigned long)__entry->ino,
+ blk_op_str(__entry->op), __entry->sector,
+ __entry->nr_sectors
+ )
+);
+
+TRACE_EVENT(zonefs_file_dio_append,
+ TP_PROTO(struct inode *inode, ssize_t size, ssize_t ret),
+ TP_ARGS(inode, size, ret),
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(sector_t, sector)
+ __field(ssize_t, size)
+ __field(loff_t, wpoffset)
+ __field(ssize_t, ret)
+ ),
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->sector = ZONEFS_I(inode)->i_zsector;
+ __entry->size = size;
+ __entry->wpoffset = ZONEFS_I(inode)->i_wpoffset;
+ __entry->ret = ret;
+ ),
+ TP_printk("bdev=(%d, %d), ino=%lu, sector=%llu, size=%zu, wpoffset=%llu, ret=%zu",
+ show_dev(__entry->dev), (unsigned long)__entry->ino,
+ __entry->sector, __entry->size, __entry->wpoffset,
+ __entry->ret
+ )
+);
+
+TRACE_EVENT(zonefs_iomap_begin,
+ TP_PROTO(struct inode *inode, struct iomap *iomap),
+ TP_ARGS(inode, iomap),
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(ino_t, ino)
+ __field(u64, addr)
+ __field(loff_t, offset)
+ __field(u64, length)
+ ),
+ TP_fast_assign(
+ __entry->dev = inode->i_sb->s_dev;
+ __entry->ino = inode->i_ino;
+ __entry->addr = iomap->addr;
+ __entry->offset = iomap->offset;
+ __entry->length = iomap->length;
+ ),
+ TP_printk("bdev=(%d,%d), ino=%lu, addr=%llu, offset=%llu, length=%llu",
+ show_dev(__entry->dev), (unsigned long)__entry->ino,
+ __entry->addr, __entry->offset, __entry->length
+ )
+);
+
+#endif /* _TRACE_ZONEFS_H */
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE trace
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>